You can use DDR2 for MK4 and MK5CF-29 Toughbooks, same for CF-30. You cannot use DDR2 for MK1-MK3 CF-29 Toughbooks. To learn more about DDR2 RAM for Panasonic Toughbooks, visit PanasonicToughbooks.net. The Max size for these machines 1GB. Add that to the internal RAM in BIOS either 256MB or 512GB. [
When replacing the KB, don'f forget the double sided fiberglass tape. The regular CF-29 KB is a backbone of thin aluminum sheeting, Most likely when you "pop" off the KB, its likely to bend. When you install a bent KB, it bounces when you type. Bend it back and tape it down with new tape. With the CF-30, removing that KB is totally different. Its locked down by brackets, not taped. You need to slide it forward unlocking it before popping it off, otherwise your KB keys start breaking. Be soft and confident, because you bet one chance to do it correctly. Sponsored by Black Hawk Toughbooks.